Refrigerator shelf



FIG. 1 is a perspective view of a refrigerator shelf, showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof.

The ornamental design for a refrigerator shelf, as shown.